Titanium migration driven by Li vacancies in Li1−xTi2O4 spinel

A. Kitada; A. M. Arevalo-Lopez; J. P. Attfield

doi:10.1039/C5CC02800K

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Titanium migration driven by Li vacancies in Li_1−xTi₂O₄ spinel†

A. Kitada,^a A. M. Arevalo-Lopez^b and J. P. Attfield*^b

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* Corresponding authors

^a Department of Materials Science and Engineering, Kyoto University, Yoshida-honmachi, Sakyo, Kyoto 606-8501, Japan

^b Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Edinburgh EH9 3FD, UK
E-mail: j.p.attfield@ed.ac.uk

Abstract

Gentle oxidation of lithium titanate spinel (LiTi₂O₄) with water at room temperature gives Li-deficient Li_0.33Ti₂O₄. Combined X-ray and neutron Rietveld analysis shows that 28% of the Ti cations are displaced to alternative octahedral sites, in keeping with a proposed model based on Ti-migration limited by Li-vacancy concentration.

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Supplementary files

Crystal structure data CIF (295K)

Article information

DOI: https://doi.org/10.1039/C5CC02800K
Article type: Communication
Submitted: 03 Apr 2015
Accepted: 27 May 2015
First published: 28 May 2015
This article is Open Access

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Chem. Commun., 2015,51, 11359-11361

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Titanium migration driven by Li vacancies in Li_1−xTi₂O₄ spinel

A. Kitada, A. M. Arevalo-Lopez and J. P. Attfield, Chem. Commun., 2015, 51, 11359 DOI: 10.1039/C5CC02800K

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